No. Caltech seismologist extraordinaire Lucy Jones told reporters earlier this year that there's no such thing as earthquake weather. She said that generations that go through a particularly traumatic temblor attach whatever weather was happening at that time to the concept.

Therefore there have been times in the past when cold, for example, was associated with "earthquake weather."

Bummed?

Don't be. We're still going to get the Big One someday, rain or shine.

[Added at 11:59 p.m.]: L.A. Fire Department spokesman Matt Spence says no damage or injuries have been reported but that the LAFD is in "Emergency Earthquake Mode," apparently as a precaution.

We are now *out* of Earthquake Mode. LAFD City-wide assessment complete. *NO injuries/significant damage reported* All resources returning to quarters & will be rehoused

[Update at 11:26 a.m. Wednesday]: A 4.5 hit at 9:33 a.m. and then a 3.4 at 9:51 a.m., all in the same, Yorba Linda area, according to the USGS.

Last night's biggest quake was upgraded to 4.5, the Survey says.

Experts are now calling this a "swarm" of temblors. It's not clear if this is leading up to something or a series of aftershocks.

[Added at 11:48 a.m.]: The LAPD activated its Department Operations Center as a precaution following this morning's 4.5, Officer Cleon Joseph told the Weekly. The center was "only at level 1," the lowest level of readiness, he said.

Dennis Romero has worked on staff at several magazines and newspapers, including the Philadelphia Inquirer and the Los Angeles Times, where he participated in Pulitzer Prize-winning coverage of the L.A. riots. His work has appeared in Rolling Stone online, the Guardian, and, as a
young stringer, the New York Times.